Airsoft newbie advice on Ares Amoeba AM-008 setup HELP

[Krusty]

Hi guys, I am new to airsoft and have bought myself my first gun. 
I have purchased an ARES Amoeba AM-008 and I am looking for some advice on what I need to get before I take it out for the first time. 
The gun didn’t turn up with a battery and looking online I think that a 

 Nuprol 2600mAh 11.1v LIPO Twin Stick - Mini Tamiya may be my best option.

i will also need to obtain a charger for this. 
I would like to know what I can use on this gun and will make a list below of stuff I would like to get but do not know what is compatible.

 

optic - red dot/holographic

foregrip

tracer

silencer

sling & hook 

spare mags

battery & charger 

flashlight 

 

sorry if this was a long winded post I am just lost and looking for advice on what I can do to maximise my new weapon. 
 

thankyou in advance 
 

Edited 8 hours ago by Krusty